public class Homework01 {

	public static void main(String[] args) {
		10 / 3 = 3
		10 / 5 = 2
		10 % 2 = 0
		-10.5 % 3 = -1.5//a % b当a是小数时，公式 = a - (int)a / b * b

	}
}
